Suspension Air Bags

I tow a 2500 lbs popup camper with a 2018 Chrysler Pacifica Mini-van. Towing is find but It has about 2 inches of sag and I would like to install air bags to help. Unfortunately, there are no air bags out yet for my van.

Has anyone had any luck installing universal fit air bags and has a recommendation for me?

Also please do not post if you are say something negative about mini van towing. The van tows the popup just fine and I have not had any issues. I just want to make sure I have the best towing setup possible.

You should call a Chrysler dealer and see if the rear coil part numbers changed from the older model to the new Pacifica. If the part is the same, it's a good chance the air bags designed to fit the older Grand Caravan would fit.